Her voice was gift. A gift from Satan himself.
Her mother, an Angle. Her father, Satan's right hand. Her mother heavenly voice, Her fathers sinful words. She was cursed, yet blessed. She was directly attached to Satan, that is not something that goes unmarked. Singing was her nature, as simple as breathing, almost as vital too. But it was lethal. Lethal to those of purity and innocence. Sinful to those of taint and darkness. She was born in the purity of light, but raised as a daughter of darkness. Satan's lair was her playroom, and a door to the moral world was humanities undoing.